JPH063042U - Thrashing equipment chaff sieve - Google Patents

Abstract

(57) [Abstract] [Purpose] In a chaff sheave of a threshing device, the opening of which is adjustable, and a protrusion for preventing straw slip-through that protrudes forward is provided at the lower end of the chaff sheave. Improve [Structure] A protrusion 4b for preventing straw scraps from slipping off of the chaff sheave 4 is provided with cutouts 4c for blowing through selected air at predetermined intervals in the left-right direction.

Description

[Detailed description of the device]

[0001]

[Industrial applications]

 The present invention relates to a chaff sheave of a swing sorting device in a threshing device.

[0002]

[Prior art]

 Conventionally, as shown in Japanese Patent Application Laid-Open No. 2-113823, a partition stand as a projection for preventing straw slip-through which protrudes forward is provided at a lower end portion of a chaf sheave of a chaff sheave of a rocking and sorting device in a threshing device. There is an upper part.

[0003]

[Problems to be solved by the device]

 The chaff sheave's cha-flip plate has a protruding piece at the lower end to prevent the chips from slipping forward, which prevents the sorting wind from passing through the Karato, especially when the processed material is damp. However, there is an inconvenience that clogging is likely to occur. Therefore, as a means for solving the above-mentioned drawbacks, it is conceivable to provide a large number of through-holes for blow-through of Karafu-style in the protrusions for preventing the straw scrap slip-through at the lower end of the chaf sheave of the chaff sheave. However, there is an inconvenience that straw dust sticks into the through hole and straddles it to induce clogging. An object of the present invention is to improve the ventilation of Kara-tou wind and suppress the reduction of sorting efficiency without inducing clogging of straw debris by a simple structural improvement.

[0004]

[Means for Solving the Problems]

 The feature of the present invention for achieving the above-mentioned object is that the cutouts for blowing out the selection wind are provided at a predetermined interval in the left-right direction on the protrusions for preventing the straw dust slip-through at the lower end of the chaff sheave. is there.

[0005]

[Action]

 As shown in FIG. 1 and FIG. 2, the sorting wind from the Karato is treated by the cutouts provided between the lip plates 4a, 4a of the chaff sheave 4 and the protrusion 4b at the lower end of the chaf sheave 4 for preventing the passage of straw dust. It will be blown upward through 4c. Further, since the air holes for the selection wind blow-through formed in the protrusions 4b for preventing the straw scrap slip-through are the notches 4c whose front is open, the twigs and the like that have fallen into the notches can be removed from the shaking selection case. As it moves back and forth, it falls down from the notch in the front opening, preventing the clogging of straw debris.

[0006]

[Effect of device]

 As a result of the above configuration, it is possible to improve the ventilation of the sorting air with respect to the chaff sieve without inducing clogging due to the catch of straw dust, and a good sorting effect can be expected.

[0007]

【Example】

 Embodiments of the present invention will be described below with reference to the drawings. FIG. 4 shows a side view of the threshing device mounted on the combine, in which the processed material leaked from the receiving net 2 is sorted below the receiving net 2 of the handling room 1 by specific gravity. The grain pan 3 that is conveyed to the rear, the chaff sieve 4 that sifts the grain in the processed material that has been conveyed by the grain pan 3, and the grain that has been sifted by the chaff sieve 4 is singulated. The grain sieve 5 which sifts into the grain and the grain with the branch, and further conveys the relatively large straw waste sent out from the end side of the receiving net 2 without leaking from the receiving net 2 to the outside of the machine. An oscillating sorting device 7 provided with a straw rack 6 is provided, and under the oscillating sorting device 7, a first grain collecting section 8 for collecting singulated grains and transporting them outside the machine, and The grain with branches that has fallen from the end of the grain sieve 5 is collected, 2nd substance collecting unit 9 is provided to reduce. Below the starting end portion of the rocking / sorting device 7, the grain sheave 5, and in addition, the Karako 10 for blowing back small straw chips passing through the straw rack 6 to the rear, and the rocking / sorting device 7 A dust exhaust fan 11 is provided above the terminal end of the to suck the straw dust blown off by the Karato 10 and discharge it to the outside of the apparatus.

As shown in FIG. 3, the chaff sheave 4 of the rocking / sorting device 7 includes a rocking / sorting case 12 and a large number of substantially strip-shaped chaflip plates 4 a installed in parallel to each other. The upper part of 4a is pivotally connected about each axis X so as to be swingable, and the lower part is pivotally connected by a lower pivot member 13 so as to oppose the biasing force of the spring 14 for closing and biasing the operating wire. The opening can be adjusted by pulling 15 on. The opening degree of the chaff sheave 4 is adjusted by detecting a vertical displacement amount according to the amount of the culm of the holding rail 17 with respect to the feed chain 16 of the threshing device by the sensor 18, and based on the detection result, the control device 19 and the driving device. The device 20 is configured to pull the operation wire 15 to adjust the opening. As shown in FIGS. 1 and 2, at the lower end of each chaf flip plate 4a of the chaff sheave 4, there is provided a protruding piece 4b for preventing straw scrap slip-through which projects forward. The protruding pieces 4b are provided with notches 4c for passing the selected wind of the Karato 10 at a predetermined interval in the left-right direction.

Further, as shown in FIG. 3, a partition wall 21 for supplying the chaff sheave 4 with a constant layer of the material to be leaked from the receiving net 2 is provided above the Glen pan 3 of the rocking sorting device 7. In front of the partition wall 21, there is provided a potentiometer-type sensor 22 for sensing the layer thickness, and based on the detection result of the sensor 22, it swings through the control device 19. It is configured to control the rotation speed of the drive motor 23 of the sorting device 7. That is, when there is a small amount of the leaked material from the receiving net 2, the number of swings of the shaking sorting device 7 is reduced so that the staying layer is supplied in a constant manner. When there are many leaked substances, the number of times of rocking is increased to improve the treatment efficiency and stabilize the sorting performance.

It should be noted that reference numerals are added to the claims of the utility model for convenience of comparison with the drawings, but the invention is not limited to the configurations of the accompanying drawings by the entry.

[Brief description of drawings]

FIG. 1 Enlarged vertical sectional view of a chaff sheave

FIG. 2 is a cross-sectional plan view of the same.

FIG. 3 is a schematic diagram of a control system.

FIG. 4 is a vertical side view of the threshing device.

[Explanation of symbols]

 4 chaff sheave 4a chaf flip plate 4b protrusion 4c notch 12 rocking sorting case

Claims (1)

[Scope of utility model registration request] 1. A large number of char flip plates (4a) are arranged in parallel in the rocking sorting case (12) in the front-rear direction along the left-right direction, and each char flip plate (4a) is attached to the rocking sorting case (12). 12) is swingably supported in the front and rear direction to adjust the opening degree, and further, each of the char flip plates (4a).
A chaff sheave of a threshing device having a projection (4b) for preventing straw scrap slip-out protruding forward at the lower end of the chaff sheave (4b) for preventing straw scrap slip-through of the chaff sheave (4). , A chaff sheave of a threshing device provided with notches (4c) for passing through a selection wind at predetermined intervals in the left-right direction.